.content {
    height: 60px;
    width: 145px;
    background: #333;
    padding: 4px 0 0 4px;
    border: 1px solid #555;
}

.arrow {
    width: 8px;
    height: 8px;
    background: #333;
    margin-left: 10px;
    transform: rotate(45deg) translate(0, -5px);
    border-right: 1px solid #555;
    border-bottom: 1px solid #555;
}